/Engine/Source/Runtime/Sockets/Public/SocketSubsystem.h
Create aFInternetAddrof the desired protocol
virtual [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FInternetAddr](API\Runtime\Sockets\FInternetAddr) > CreateInternetAddr ( const [FName](API\Runtime\Core\UObject\FName) ProtocolType )